1205087028 has 12 divisors (see below), whose sum is σ = 2811869760. Its totient is φ = 401695672.

The previous prime is 1205087011. The next prime is 1205087029. The reversal of 1205087028 is 8207805021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1205087028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205087029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50211948 + ... + 50211971.

It is an arithmetic number, because the mean of its divisors is an integer number (234322480).

Almost surely, 2^1205087028 is an apocalyptic number.

It is an amenable number.

1205087028 is an abundant number, since it is smaller than the sum of its proper divisors (1606782732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205087028 is a wasteful number, since it uses less digits than its factorization.

1205087028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100423926 (or 100423924 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 1205087028 is about 34714.3634249571. The cubic root of 1205087028 is about 1064.1580561643.

The spelling of 1205087028 in words is "one billion, two hundred five million, eighty-seven thousand, twenty-eight".